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Finding the Fourth Proportional to 46.99, 70.48 and 14.93

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Solution

The fourth proportional to 46.99, 70.48 and 14.93 is: 22.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    46.99 : 70.48 = 14.93 : x
  2. Step 2: Convert to fraction form
    46.99/70.48 = 14.93/x
  3. Step 3: Cross multiply
    46.99x = 70.48 × 14.93
  4. Step 4: Simplify right side
    46.99x = 1,051.91
  5. Step 5: Solve for x
    x = 1,051.91/46.99
  6. Step 6: Final answer
    x = 22.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.